<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<meta name="viewport"
        content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
  	<meta http-equiv="X-UA-Compatible" content="ie=edge">
	<title>Hello React</title>
</head>
<body>
	<!-- 这个div必须和index.js里的render方法里传入的第二个参数保持一致 -->
	<div id="app"></div>
	<!-- roadhog背后会把你的代码从入口文件开始打包成一个index.js文件 -->
	<script src="./index.js"></script>
</body>
</html>